US7681588B2 - Pressure regulator - Google Patents

Pressure regulator Download PDF

Info

Publication number
US7681588B2
US7681588B2 US10/564,463 US56446304A US7681588B2 US 7681588 B2 US7681588 B2 US 7681588B2 US 56446304 A US56446304 A US 56446304A US 7681588 B2 US7681588 B2 US 7681588B2
Authority
US
United States
Prior art keywords
piston
valve
partial volume
housing
regulator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related, expires
Application number
US10/564,463
Other languages
English (en)
Other versions
US20070039651A1 (en
Inventor
Victor de Leeuw
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nordson Corp
Original Assignee
Nordson Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nordson Corp filed Critical Nordson Corp
Assigned to NORDSON CORPORATION reassignment NORDSON CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DE LEEUW, VICTOR
Publication of US20070039651A1 publication Critical patent/US20070039651A1/en
Application granted granted Critical
Publication of US7681588B2 publication Critical patent/US7681588B2/en
Expired - Fee Related legal-status Critical Current
Adjusted expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
    • B05B12/085—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to flow or pressure of liquid or other fluent material to be discharged
    • B05B12/087—Flow or presssure regulators, i.e. non-electric unitary devices comprising a sensing element, e.g. a piston or a membrane, and a controlling element, e.g. a valve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/10—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger
    • G05D16/107—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger with a spring-loaded piston in combination with a spring-loaded slideable obturator that move together over range of motion during normal operation
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/14—Control of fluid pressure with auxiliary non-electric power
    • G05D16/18—Control of fluid pressure with auxiliary non-electric power derived from an external source
    • G05D16/187—Control of fluid pressure with auxiliary non-electric power derived from an external source using pistons within the main valve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y10T137/7782—With manual or external control for line valve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y10T137/7793—With opening bias [e.g., pressure regulator]
    • Y10T137/7801—Balanced valve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y10T137/7793—With opening bias [e.g., pressure regulator]
    • Y10T137/7809—Reactor surface separated by apertured partition
    • Y10T137/7812—Valve stem passes through the aperture
    • Y10T137/7818—Valve head in inlet chamber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y10T137/7793—With opening bias [e.g., pressure regulator]
    • Y10T137/7822—Reactor surface closes chamber
    • Y10T137/7823—Valve head in inlet chamber
    • Y10T137/7826—With valve closing bias
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8158—With indicator, register, recorder, alarm or inspection means
    • Y10T137/8225—Position or extent of motion indicator
    • Y10T137/8275—Indicator element rigidly carried by the movable element whose position is indicated
    • Y10T137/8292—Movable indicator element is a pointer

Definitions

  • the invention relates to a pressure regulator with two partial volumes for regulating the operating pressure of fluids, in particular adhesive, at the inlet of a consuming device.
  • a glue pump which conveys the glue with a certain pressure to one or more dispenser heads is generally used in industrial production.
  • the dispenser heads are controlled pneumatically or electrically and dispense cold glue as determined by the control system.
  • the substrate is usually moved relative to the dispenser head.
  • a predefinable amount of cold glue must be dispensed from the dispenser head in order to produce a specified layer thickness of cold glue on the substrate. If the speed changes during application, or if application of the glue is interrupted, a valve in the dispenser head must be closed, or the valve opening must be reduced.
  • the object of the invention is therefore to provide a pressure regulator, in particular for the cases described, by means of which peak pressures in the fluid being dispensed are largely avoided, without loss of fluid, when the device consuming the fluid is shut off, while also ensuring that an amount of fluid optimally adjusted to requirements is available when the consuming device is restarted.
  • the pressure regulator according to the invention is relatively inexpensive to produce, because its adjuster portion can be a pneumatic device commonly available on the market.
  • FIG. 1 a pressure regulator in a perspective view
  • FIG. 2 a pressure regulator in a cross-sectional view
  • FIG. 3 a pressure regulator in a cross-sectional view, in which the sectional plane is rotated 90° about the normal axis Z-Z in FIG. 2 , and
  • FIG. 4 an enlarged view of a section of FIG. 3 .
  • the pressure regulator 10 can be used to regulate the pressure of different kinds of fluid, such as cold glue, hot-melt adhesives and other fluids; in the following, it is described with reference to the regulation of cold glue pressure.
  • the pressure regulator 10 is mainly comprised of a regulator portion 12 and an adjuster portion 90 disposed along a common axis Z-Z ( FIG. 2 ).
  • the regulator portion 12 has a fluid inlet 16 and a fluid outlet 26 for liquid cold glue or a similar fluid, and can be mounted with the help of an angle bracket 84 .
  • the adjuster portion 90 disposed above the regulator portion 12 can be supplied with compressed air from a compressed air supply connection 96 .
  • the pressure regulator 10 has a first partial volume 14 connected in the regulator portion 12 to a fluid inlet 16 , and a second partial volume 24 connected to the fluid outlet 26 .
  • the second partial volume 24 comprises a cylindrical section 24 a, a channel 24 b and an outlet portion 24 c.
  • the fluid inlet 16 is formed by an inlet hole 18 and an inlet connection member 20
  • the fluid outlet 26 is formed by an outlet hole 28 and an outlet connection member 26 .
  • a connecting channel 22 leads from the first partial volume 14 to the second partial volume 24 .
  • FIG. 4 shows an enlarged view of a section of the regulator portion 12 around the first and second partial volume 14 / 24 .
  • a two-part sealing piston 32 with a sealing body 34 and a guide member 36 is movably disposed in a cylindrical valve guide 38 .
  • the sealing body 34 has a sealing surface 40 incorporating a sealing ring 42 .
  • the rear side of the guide member 36 is inserted into the sealing body 34 .
  • a guide sealing ring 44 is provided between the sealing body 34 and the guide member 36 .
  • the rear side 46 of the guide member 36 faces the second partial volume 24 , to the pressure of which it is exposed. Dead zones are avoided due to the valve guide 38 being configured such that it is open to the second partial volume.
  • the sealing body 34 is weakly biased in the direction of closure by a valve spring 48 .
  • the first partial volume 14 is isolated at the bottom from the second partial volume 24 by an intermediate base 50 and sealed by a base sealing ring 52 .
  • the connecting channel 22 passes through a ceramic insert 23 that is disposed opposite the sealing ring 42 , with which it forms a valve.
  • a working piston 54 is displaceably disposed inside a cylinder 25 along axis Z-Z ( FIG. 2 ) and confines the second partial volume 24 at the end facing away from its fluid outlet 26 .
  • a piston rod 56 passes through working piston 54 , extends through the connecting channel 22 and can rest upon the sealing surface 40 of the sealing body 34 .
  • the working piston 54 also has a front and a rear piston disk 58 and 60 , which are fastened to the working piston 54 with the help of a locking nut 62 .
  • a circumferential lip seal 64 for sealing the working piston against the wall of cylinder 25 is provided between the front and the rear piston disks 58 and 60 .
  • FIG. 2 shows the overall constructional design of the regulator portion 12 .
  • the first partial volume 14 and the second partial volume 24 are substantially formed in a regulator housing 66 .
  • the regulator housing 66 is dosed off at the bottom by a regulator base 68 , which is attached to the regulator housing 66 along with an intermediate seal 70 .
  • the upper end of the regulator housing 66 is formed by cover plate 72 that is screw-fastened to the regulator housing 66 with six hexagon socket screws 74 .
  • the cover plate 72 is provided with a through bore 76 for guiding the working piston 54 via the rear portion of piston rod 56 , said through bore having a sliding bearing 78 .
  • cylinder 25 has a pressure compensation hole 80 with a protective flap 82 at the back of working piston 54 , said cap serving as protection during transport.
  • pressure compensation hole 80 By means of pressure compensation hole 80 , cylinder 25 of the regulator portion 12 is supplied with lubricant when the regulator is commissioned.
  • an adjuster piston 92 is provided inside an adjusting cylinder 93 in the adjuster portion 90 , and forms a variable boundary of a pressure chamber 94 into which the compressed air supply connector 96 leads.
  • the adjuster piston 92 has an adjuster piston rod 100 with an axial threaded hole 102 into the front end of which a screw plug 104 is screwed.
  • the adjuster piston 92 can apply force to the working piston 54 via screw plug 104 and piston rod 100 .
  • the adjuster piston rod 100 with screw plug 104 is partially surrounded by a cylinder jacket 106 .
  • the adjuster piston 92 is weakly biased in the direction of the pressure chamber 94 with the help of a tension spring 112 .
  • the pressure chamber 94 can be supplied with compressed air via a compressed air supply connection 96 , which comprises a compressed air connector 114 and a compressed air hole 116 .
  • the adjusting cylinder 93 is located in a housing 118 . In the direction of the regulator portion 12 , housing 118 is closed off by a base 124 . In housing 118 , above the base 124 , a pressure compensation hole 126 is provided to equalize the pressure of chamber 128 between the base 124 and the adjuster piston 92 .
  • the adjuster portion 90 and the regulator portion 12 are joined to each other by stud bolts 130 , which are fastened by four cap nuts.
  • valve 23 , 32 is closed. This valve setting is possible
  • the raised position of working piston 54 is made externally visible by indicator screw 57 .
  • valve 23 , 32 If there is no pressure in pressure chamber 94 and cold glue is therefore fed under pressure through fluid inlet 16 ( FIG. 2 ) into the first partial volume 14 , with valve 23 , 32 in the closed position, the sealing body 34 under the biasing force of valve spring 48 is pressed additionally against the ceramic insert 23 by the pressure of the cold glue. The sealing effect of valve 23 , 32 is therefore reinforced. In this dosed position of valve 23 , 32 , the cold glue in the first partial volume 14 does not reach the second partial volume 24 , which is therefore under no pressure and free of cold glue when the device is started.
  • the enlarged sectional view In FIG. 4 shows valve 23 , 32 in the open position.
  • valve 23 , 32 When valve 23 , 32 is open, the cold glue that is pumped under constant preliminary pressure by a pump (not shown) into the first partial volume 14 proceeds through the gap between the sealing ring 42 and the ceramic insert 23 , then on through the connecting channel 22 into the second partial volume 24 and through the fluid outlet 26 to dispenser heads (likewise not shown).
  • the pressure of the cold glue in the first partial volume 14 is therefore effective in the second partial volume 24 as well, and hence also as far as the dispenser heads.
  • the dispenser heads' demand for cold glue is dependent, inter alia, on the feed speed of the substrate onto which the cold glue is dispensed.
  • the amount dispensed is controlled at the dispenser heads by compressed air, for example.
  • a proportional valve supplies compressed air, in this example, to the pressure chamber 94 of adjuster portion 90 .
  • sealing piston 32 Inside regulator portion 12 , and after valve 23 , 32 opens, the pressure of the cold glue acts not only on the sealing surface 40 of sealing piston 32 , but also on the rear side 46 of the guide member 36 of sealing piston 32 .
  • the pressures acting on sealing piston 32 are substantially balanced out.
  • a force acting in the direction of closure results only from the biasing force of valve spring 48 ; however, the force of the spring is small by comparison. Accordingly, sealing body 34 is pressed with only slight force against the endstop formed by piston rod 56 . The aforementioned gap is not reduced to any perceptible degree.
  • the pressure of the cold glue acts not only on sealing piston 32 , but also on the front end 59 of working piston 54 (which faces downwards In the drawing), in particular on the piston disk 58 thereof, and is therefore directed against the regulating force generated by the compressed air in the pressure chamber 94 .
  • the decrease in the pressure of the cold glue in the second partial volume 24 also leads to a reduction in the force counteracting the regulatory force, said force being produced by the pressure that is also exerted on the front side 59 of the working piston 54 .
  • This means that the movement of the working piston 54 is likewise counteracted until there is equilibrium between the regulating force and the force on the working piston 54 generated by the pressure in the second partial volume 24 .
  • the pressure of the cold glue in the second partial volume 24 is then proportional to said regulating force.
  • FIG. 2 illustrates how the regulating force is generated.
  • the cylindrical pressure chamber 94 can be supplied with compressed air via the compressed air connection 96 comprising the compressed air connector 114 and a compressed air hole 116 .
  • the adjustment pressure that builds up as a result in pressure chamber 94 thus acts on the adjuster piston head 98 of adjuster piston 92 and leads to a regulating force that acts in the direction of the working piston 54 . If said regulating force is equal in strength to the force produced by the pressure in the second partial volume 24 on working piston 54 , a state of equilibrium results.
  • the force of spring 112 is small and of importance only at smaller pressures, particularly in the unpressurized state.
  • the pressure ratio between the adjustment pressure in the cylindrical pressure chamber 94 and the pressure in the second partial volume 24 is essentially equal to the ratio in areas between the effective surface of the front side 59 of working piston 54 and the effective surface of the adjuster piston head 98 of adjuster piston 92 .
  • this ratio is 1:3, so a pressure of one bar in pressure chamber 94 can lead to the cold glue in the second partial volume 24 having a pressure of three bar.
  • the pressure of the cold glue in the second partial volume 24 —and hence at the inlet of the dispenser heads— is therefore defined with the help of the pressure in adjusting cylinder 93 .
  • the flow of cold glue from the second partial volume 24 to the dispenser heads that is stimulated by releasing the cold glue stored in cylindrical section 24 a is maintained by the subsequent flow of cold glue from the first partial volume 14 into the second partial volume 24 . Any cold glue that is subsequently required is then conveyed by the pump through fluid inlet 16 .
  • the operating pressure of liquid cold glue at the inlet of a dispensing head can be easily adjusted to a desired value.
  • Interruptions and restarts of a material dispensing process can likewise be carried out in a simple and beneficial manner, and without unwanted peak pressures, using the pressure regulator according to the invention.
US10/564,463 2003-07-14 2004-07-06 Pressure regulator Expired - Fee Related US7681588B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE20310832.9 2003-07-14
DE20310832U 2003-07-14
DE20310832U DE20310832U1 (de) 2003-07-14 2003-07-14 Druckregler
PCT/EP2004/051367 WO2005005059A1 (en) 2003-07-14 2004-07-06 Pressure regulator

Publications (2)

Publication Number Publication Date
US20070039651A1 US20070039651A1 (en) 2007-02-22
US7681588B2 true US7681588B2 (en) 2010-03-23

Family

ID=33483191

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/564,463 Expired - Fee Related US7681588B2 (en) 2003-07-14 2004-07-06 Pressure regulator

Country Status (9)

Country Link
US (1) US7681588B2 (zh)
EP (1) EP1646451B1 (zh)
JP (1) JP4459958B2 (zh)
CN (1) CN100406132C (zh)
AT (1) ATE350170T1 (zh)
AU (1) AU2004255485B2 (zh)
DE (2) DE20310832U1 (zh)
ES (1) ES2277286T3 (zh)
WO (1) WO2005005059A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10274973B2 (en) 2016-04-13 2019-04-30 Carleton Life Support Systems, Inc. Semi-closed circuit underwater breathing apparatus ratio regulator

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103817041B (zh) * 2013-04-25 2017-02-22 鹿新村 一种多点微量定量点胶装置
JP1520210S (zh) * 2014-05-16 2015-03-30
JP2014225282A (ja) * 2014-07-23 2014-12-04 株式会社ニコン 圧弁、加圧装置、重ね合わせ装置、加圧方法および重ね合わせ方法
CN105457848A (zh) * 2015-11-20 2016-04-06 侯如升 一种双组份打胶机双头增压器
WO2017152280A1 (en) * 2016-03-07 2017-09-14 Westport Power Inc. Pressure regulating modules with controlled leak paths
USD854659S1 (en) * 2017-09-08 2019-07-23 Smc Corporation Regulator
MX2020004496A (es) * 2017-10-30 2020-10-14 Nordson Corp Valvula dispensadora con cuerpo de fluido desechable.
CN107790334A (zh) * 2017-11-30 2018-03-13 苏州特瑞特机器人有限公司 双液制冷控压点胶机
CN112221841B (zh) * 2020-09-11 2021-09-28 安徽华铂再生资源科技有限公司 一种蓄电池加工用点胶装置及其工作方法
CN115055337B (zh) * 2022-07-04 2023-09-19 智慧星空(上海)工程技术有限公司 一种仿生点胶阀及点胶方法

Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US159732A (en) * 1875-02-09 Improvement in gas-regulators
US251726A (en) * 1882-01-03 Water-pressure regulator
US479553A (en) * 1892-07-26 Gas-governor
US942042A (en) * 1909-04-20 1909-11-30 Benjamin H Petley Fluid-pressure regulator.
US2105681A (en) * 1934-09-26 1938-01-18 Copes Regulators Ltd Valve
US2602467A (en) * 1945-05-21 1952-07-08 Clayton Manufacturing Co Power-operated check valve
US3643683A (en) * 1970-09-23 1972-02-22 Albert L Semon Double venturi pressure regulator
US4445532A (en) * 1979-10-15 1984-05-01 The Garrett Corporation Pressure regulator system
DE8904692U1 (zh) 1989-04-14 1989-05-24 Sasse, Hans-Henning, 4030 Ratingen, De
EP0509323A2 (en) 1991-04-19 1992-10-21 Nordson Corporation Method and apparatus for dispensing high viscosity fluid materials
US5159952A (en) * 1990-06-29 1992-11-03 Honda Giken Kogyo Kabushiki Kaisha Regulator for water base paint
US5234026A (en) * 1992-06-29 1993-08-10 Tescom Corporation Pressure reducing regulator
US5312016A (en) 1992-11-04 1994-05-17 Johnstone Pump Company Mastic applicator system
US5406975A (en) * 1993-03-12 1995-04-18 Aisan Kogyo Kabushiki Kaisha Flow rate control valve
US5497803A (en) * 1993-12-17 1996-03-12 A.B. Vitaldado S.P.A. Pressure regulator for the first stage of two-stage aqualungs
US5810041A (en) * 1996-05-16 1998-09-22 Htm Sport S.P.A. Pressure regulator
US6199582B1 (en) * 1998-12-25 2001-03-13 Advance Denki Kougyou Kabushiki Flow control valve
US6329013B1 (en) 1996-02-23 2001-12-11 Scranex Automation Ab Method for dispensing a viscous solution
US20020170601A1 (en) * 2001-05-16 2002-11-21 Smith David M. Pressure reducing valve assembly

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1230174A (fr) * 1958-07-07 1960-09-14 British Oxygen Co Ltd Soupape pour le réglage de l'écoulement d'un fluide sous pression
US5107887A (en) * 1990-12-03 1992-04-28 The Aro Corporation High pressure fluid regulator
DE10046736B4 (de) * 2000-09-21 2006-04-13 Siemens Ag Druckregler

Patent Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US159732A (en) * 1875-02-09 Improvement in gas-regulators
US251726A (en) * 1882-01-03 Water-pressure regulator
US479553A (en) * 1892-07-26 Gas-governor
US942042A (en) * 1909-04-20 1909-11-30 Benjamin H Petley Fluid-pressure regulator.
US2105681A (en) * 1934-09-26 1938-01-18 Copes Regulators Ltd Valve
US2602467A (en) * 1945-05-21 1952-07-08 Clayton Manufacturing Co Power-operated check valve
US3643683A (en) * 1970-09-23 1972-02-22 Albert L Semon Double venturi pressure regulator
US4445532A (en) * 1979-10-15 1984-05-01 The Garrett Corporation Pressure regulator system
DE8904692U1 (zh) 1989-04-14 1989-05-24 Sasse, Hans-Henning, 4030 Ratingen, De
US5159952A (en) * 1990-06-29 1992-11-03 Honda Giken Kogyo Kabushiki Kaisha Regulator for water base paint
EP0509323A2 (en) 1991-04-19 1992-10-21 Nordson Corporation Method and apparatus for dispensing high viscosity fluid materials
US5234026A (en) * 1992-06-29 1993-08-10 Tescom Corporation Pressure reducing regulator
US5312016A (en) 1992-11-04 1994-05-17 Johnstone Pump Company Mastic applicator system
US5406975A (en) * 1993-03-12 1995-04-18 Aisan Kogyo Kabushiki Kaisha Flow rate control valve
US5497803A (en) * 1993-12-17 1996-03-12 A.B. Vitaldado S.P.A. Pressure regulator for the first stage of two-stage aqualungs
US6329013B1 (en) 1996-02-23 2001-12-11 Scranex Automation Ab Method for dispensing a viscous solution
US5810041A (en) * 1996-05-16 1998-09-22 Htm Sport S.P.A. Pressure regulator
US6199582B1 (en) * 1998-12-25 2001-03-13 Advance Denki Kougyou Kabushiki Flow control valve
US20020170601A1 (en) * 2001-05-16 2002-11-21 Smith David M. Pressure reducing valve assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10274973B2 (en) 2016-04-13 2019-04-30 Carleton Life Support Systems, Inc. Semi-closed circuit underwater breathing apparatus ratio regulator

Also Published As

Publication number Publication date
AU2004255485A1 (en) 2005-01-20
EP1646451A1 (en) 2006-04-19
US20070039651A1 (en) 2007-02-22
JP4459958B2 (ja) 2010-04-28
WO2005005059A1 (en) 2005-01-20
DE602004004139T2 (de) 2007-11-15
JP2009514055A (ja) 2009-04-02
DE20310832U1 (de) 2004-11-18
CN1812847A (zh) 2006-08-02
CN100406132C (zh) 2008-07-30
EP1646451B1 (en) 2007-01-03
AU2004255485B2 (en) 2009-01-08
ATE350170T1 (de) 2007-01-15
DE602004004139D1 (de) 2007-02-15
ES2277286T3 (es) 2007-07-01

Similar Documents

Publication Publication Date Title
US8608025B2 (en) Pneumatic liquid dispensing apparatus and method
US7681588B2 (en) Pressure regulator
US6799698B2 (en) Liquid material supply system
US7527768B2 (en) Liquid dispenser with vacuum control
US5462199A (en) Apparatus for discharging pasty compressible substances of high viscosity
US7134447B2 (en) Gas pressure regulator
US5934520A (en) Liquid dispensing device
US5598869A (en) Pressure regulating unit
US20130105004A1 (en) Hot melt dispensing system with heated accumulator
KR100915519B1 (ko) 재료 공급 장치
US5035357A (en) Pressure control valve and system
JP4823784B2 (ja) 液圧レギュレータおよび塗装装置
JP5024871B2 (ja) 高粘度液体塗布装置
JP4024076B2 (ja) 流体圧作動弁
JP2001263507A (ja) 流量調整弁
JP4844820B2 (ja) 材料塗布装置
US20230264223A1 (en) Fast glue replenishment device and method by using dispensing cartridge
EP1914614B1 (en) Proportional pressure control valve
EP0832387A1 (en) Spring loaded bellows regulator
JP2006122828A (ja) 高粘度液供給システム
US20100059552A1 (en) Fluid dispensing valve with a spring plate

Legal Events

Date Code Title Description
AS Assignment

Owner name: NORDSON CORPORATION,OHIO

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DE LEEUW, VICTOR;REEL/FRAME:018118/0988

Effective date: 20060814

Owner name: NORDSON CORPORATION, OHIO

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DE LEEUW, VICTOR;REEL/FRAME:018118/0988

Effective date: 20060814

FEPP Fee payment procedure

Free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362

FP Lapsed due to failure to pay maintenance fee

Effective date: 20140323